We want every person around the world to easily express themselves on Twitter, so we're doing something new: we're going to try out a longer limit, 280 characters, in languages impacted by cramming (which is all except Japanese, Chinese, and Korean).
I have taken to always posting on my own website(s) first–where the sky is the proverbial limit–and only then syndicating out to places like Twitter. While Twitter’s got a reasonable network and there are lots of interesting people who might not otherwise be online interacting, I really haven’t been using Twitter as much in the past two years as I had previously. This change isn’t going to affect me at all from a publishing perspective. There are much more valuable tools to be using now. (Though I do wish the rest of the web would catch up on some of the new technologies they’re really missing out on.)
I do appreciate that it will allow some others who don’t have their own websites some more flexibility. I’m hoping that the Twitter apps that handle notifications add the extra content as Twitter’s own mobile app notifications cut off even before the 140 character limit, which makes them painful to use from a UI perspective.
If nothing else, it’s nice to see them iterating a little, but they need to be doing it at a faster velocity.